This is a discussion on Just an Average (Sleeper) Wrx within the Member Show-Off & Photography forums, part of the Community - Meet other Enthusiasts category; Originally Posted by krntehknik303
Next step for me is to get a wingless trunk to match the scoopless hood and ...

Thanks for the input fellas! hahaha. Yeah I got some "MINOR" stuff done to the car pushing the stock turbo close to its limit, almost though, almost!

Next step for me is to get a wingless trunk to match the scoopless hood and of course get the hood painted.

Get a differnt turbo. Pushing a stock turbo to the limit isn't all that impressive and is relatively simple with very minor mods. If you want to go true sleeper, get some stock wheels off an 06-07 WRX, go wingless (as mentioned) and run the loudest exhaust you possibly can. People will think that you're N/A. Personally, I don't like scoopless. The scoop is part of the "charm" of the WRX. It's also a good conversation piece when people ask if it's functional.

Get a differnt turbo. Pushing a stock turbo to the limit isn't all that impressive and is relatively simple with very minor mods. If you want to go true sleeper, get some stock wheels off an 06-07 WRX, go wingless (as mentioned) and run the loudest exhaust you possibly can. People will think that you're N/A. Personally, I don't like scoopless. The scoop is part of the "charm" of the WRX. It's also a good conversation piece when people ask if it's functional.

Having a scoop with a front mount isn't all that much functional IMO. I would rather have people think its just stock, slammed, and with a lip kit.

So, you don't think that pulling hot air out of the engine bay while moving is functional? Hmmm...guess I've been wrong for a while...

Don't make me pull out thermodynamics on you... it's not as "functional" as you think. The main reason for switching to FMIC is to accommodate an increase in the size of the core. Also to preserve airflow velocity through the core by eliminating a 90 degree bend. It has less to do with the actual underhood temps.

Don't make me pull out thermodynamics on you... it's not as "functional" as you think. The main reason for switching to FMIC is to accommodate an increase in the size of the core. Also to preserve airflow velocity through the core by eliminating a 90 degree bend. It has less to do with the actual underhood temps.

Without a TMIC in the way I'm willing to bet the engine bay temps would be lower while you're moving than as opposed to not having a hood scoop.

Really? Think physics here. Fluid dynamics works similarly to the flow of electricity: Fluid flows along the gradient vector V = <dx/dt, dy/dt, dz/dt>. In the case of gas, flow is represented primarily by the movement of gas from the highest pressure (densest) to the lowest pressure (least dense). If you are pushing air through the hood scoop and into the engine bay, you are increasing the pressure within the engine bay at speed. As a result, you're effective delta(p) between the inside and outside of the engine bay is less than it would be without the hood scoop. Your motor is water cooled: You should be more concerned about decreasing the temps through the Radiator (which you will in this case since the volume of air -- flux -- through the radiator is larger without the scoop) than decreasing the temps in the bay itself.

Don't make me pull out thermodynamics on you... it's not as "functional" as you think. The main reason for switching to FMIC is to accommodate an increase in the size of the core. Also to preserve airflow velocity through the core by eliminating a 90 degree bend. It has less to do with the actual underhood temps.

Originally Posted by Drews

Without a TMIC in the way I'm willing to bet the engine bay temps would be lower while you're moving than as opposed to not having a hood scoop.

Originally Posted by zax

It also creates a high-pressure "bubble" in the engine bay that impedes the flow of air through FMIC

Guys that go front mount without blocking the scoop off tend to have overheating issues at the track. As zach said, you form a high pressure zone under the bonnet (2 large innies, no large outties) and any air flow will be through the (now without the top mount resistance) scoop - not the FMIC or radiator.

There were some big guys pitching in on it - Crawford and KillerB to name a few. Think it was on iwsti.

I think my top mount is just about useless at track speeds anyhow after the first lap.

Originally Posted by Trainrex

He was throwing balloons filled with sulfuric acid and shrapnel at the swat team. They finally had to take him down with rubber bullets.

All the reasons why I went with a front mount and got a scoopless hood finally. My car seems to feel a lot better with the scoopless hood "probably just me" but who knows if there is actual noticeable difference when running on a stock turbo. Maybe more with a bigger turbo?Not too sure.

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